Thank you for the report @doragasu.
I will update from 5.6 to 5.6.3 today. Maybe that already fixes the issue, haven't looked through the changelog.
But I'm honestly not sure if i should patch this, especially since it is an LTS package. Would like to get some feedback on this.

Since 03.06.2016, there has been a big bump for the LTS release from 4.5.7 to 5.6.
This means that right now, there is no difference between the latest and the lts release of SonarQube. I imagine the branches will once again diverge with the next version.
I will update this package to 5.6 shortly.